feature(mobile): sync assets, albums & users to local database on device (#1759)

* feature(mobile): sync assets, albums & users to local database on device

* try to fix tests

* move DB sync operations to new SyncService

* clear db on user logout

* fix reason for endless loading timeline

* fix error when deleting album

* fix thumbnail of device albums

* add a few comments

* fix Hive box not open in album service when loading local assets

* adjust tests to int IDs

* fix bug: show all albums when Recent is selected

* update generated api

* reworked Recents album isAll handling

* guard against wrongly interleaved sync operations

* fix: timeline asset ordering (sort asset state by created at)

* fix: sort assets in albums by created at

mobile/lib/routing/router.gr.dart

@@ -698,7 +698,7 @@ class SelectUserForSharingRoute extends PageRouteInfo<void> {
 class AlbumViewerRoute extends PageRouteInfo<AlbumViewerRouteArgs> {
   AlbumViewerRoute({
     Key? key,
-    required String albumId,
+    required int albumId,
   }) : super(
           AlbumViewerRoute.name,
           path: '/album-viewer-page',
@@ -719,7 +719,7 @@ class AlbumViewerRouteArgs {
 
   final Key? key;
 
-  final String albumId;
+  final int albumId;
 
   @override
   String toString() {